Select the correct recommendations for the management of community-acquired pneumonia in children:
1) it is not recommended to routinely perform blood cultures in children with community-acquired pneumonia treated on an outpatient basis;
2) blood cultures can be helpful in children with community-acquired pneumonia in severe condition;
3) it is recommended to routinely perform sputum culture and a nasopharyngeal swab in children with community-acquired pneumonia;
4) sputum culture should be performed also in children in good general condition;
5) before ordering cultures, it is recommended to perform a cytologic evaluation of the quality of the samples;
6) if pleural effusion is detected in a child with community-acquired pneumonia and the amount of pleural fluid is sufficient for thoracentesis, it is not necessary to perform fluid collection for microbiologic examination;
7) it is not recommended to routinely perform serologic studies to identify the aetiology of community-acquired pneumonia in children;
8) it is recommended to test nasopharyngeal lavage samples for viral antigens, and in particular for respiratory syncytial (RS) virus, in all children regardless of age who are admitted to hospital due to community-acquired pneumonia.
The correct answer is: